Molar Mass Determination of Water-Soluble Light-Emitting Conjugated Polymers by Fluorescence-Based Analytical Ultracentrifugation

Autor: Michael F. Bailey, Trevor A. Smith, Xiaotao Hao, Timothy M. Ryan
Rok vydání: 2009
Předmět:
Zdroj: Macromolecules. 42:2737-2740
ISSN: 1520-5835
0024-9297
Popis: Determining the molar mass of conjugated polymers has proven difficult in many situations using conventional means, and this is often exacerbated in the case of polyelectrolytes. In this paper we report on a new method of determining the molar mass of soluble, light-emitting conjugated polymers by coupling emission-based detection with analytical ultracentrifugation. This method is shown to be capable of recovering accurate molar masses with high sensitivity, without the need for standards, and can also identify aggregation behavior.
Databáze: OpenAIRE